please explain the steps

(1) In non-iterative processes, changes in downstream units do not influence upstream units, that is, the influence occurs only in 1 direction. A cascade association can be established in the block diagram of the process transfer functions as there is no load effect. From the non-iterative system below, find the transfer functions and block diagram of the system. Be the pnocess: a) we want to know how hl(t) in afeeted by fe(t) and f0(t) ? b) the flux between of the volven is given by f(t)=CvGtp(t) Cv: vovve leak ceefticient - Ef: nelative density [adm]